Presenting the Whole Domain
In many engineering simulations, it is common practice to reduce the size of the computational domain using planes of symmetry, axes of rotation (axisymmetry), or periodicity. Simcenter STAR-CCM+ allows you to reconstruct the whole domain in post-processing scenes.
When a simulation uses domain reduction techniques, Simcenter STAR-CCM+ generates an idealization object within the node. Scene displayers use these idealizations in reconstructing the whole domain. Idealizations include:
- Symmetry idealizations, including support of several symmetry conditions specific to electromagnetic solvers and related field functions
- Linear and helical extrusion idealizations for 2D regions and 2D region boundaries
- Axisymmetric idealizations (including 2D region boundaries extruded around the symmetry axis over an angle of 180 degrees)
- Composite idealizations
Idealization support in displayers is a purely visual effect which does not compose actual data for a full 3D model from an idealized one. As far as practically possible, the renderer tries to apply the idealization, but there are some cases where it does not produce useful results—particularly when applying composite idealizations. You may have to re-arrange manually composite idealizations to achieve the desired effects.
Displaying the Whole Domain
To visualize the whole domain geometry, set up the appropriate displayer as follows:
-
In the properties of the displayer, activate Account for Idealization. This step adds the
Periodic Repeat Control sub-node to the displayer
node.
For all the other idealizations than periodic repeat, there are no adjustable properties on the displayer level. Rather, the display responds to properties of the idealization nodes themselves, if any are present.
-
Select the Periodic Repeat Control sub-node, and set its
properties:
Symmetry Idealization - the Electromagnetism-Specific User Interface
To account for idealization for electromagnetism, symmetry idealization nodes (under ) have two properties that list field functions:
- Electric Fields (that is, field functions that behave as electric fields with respect to symmetry plane boundaries)
- Magnetic Fields
The available field functions depend on the specific physics setup for regions' symmetry boundaries. Examples are Symmetry – Perfect Magnetic Conductor and Anti-Symmetry – Perfect Electric Conductor.
The default versions of the lists are pre-populated to cover the most relevant field functions. You can add missing or user-defined field functions manually. After a saved simulation is restored, the lists contain only those field functions that the active release of Simcenter STAR-CCM+ classifies as suitable for electromagnetism-specific symmetry plane idealization.
In a simulation with multiple regions that include a symmetry plane boundary, there are multiple symmetry idealizations. Each of them has its own lists of electromagnetism-specific field functions, so you may need to multi-select idealization nodes, and multi-edit these field function lists.
Examples of Displaying the Whole Domain
- Symmetry
Account for Idealization off Account for Idealization on - Linear extrusion
Account for Idealization off Account for Idealization on - Helical extrusion
Account for Idealization off Account for Idealization on - Axisymmetric extrusion
Account for Idealization off Account for Idealization on - Composite idealizations (linear extrusion and periodic repeats)
Account for Idealization off Account for Idealization on - Periodic repeat
Account for Idealization off Account for Idealization on - VOF capillary effects 2D symmetry
Account for Idealization off Account for Idealization on - DEM 3D region with one symmetry plane
Account for Idealization off Account for Idealization on